Enhanced spin-orbit torque in Pt/Co/Pt multilayers with inserting Ru layers

被引：9
|
作者：
Wu, Yunchen [1 ]
Meng, Kangkang [1 ]
Miao, Jun [1 ]
Xu, Xiaoguang [1 ]
Jiang, Yong [1 ]
机构：
[1] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 472卷
基金：
美国国家科学基金会;
关键词：
Spin-orbit coupling; Spin-orbit torques; Spin transport in metals; DEPENDENCE; MAGNITUDE;
D O I：
10.1016/j.jmmm.2018.10.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the enhancement of spin-orbit torque (SOT) in Pt/Co/Pt multilayers with inserting Ru layers. From current induced magnetization switching and harmonic measurements, we have found that both the damping-like and field-like effective fields increased with inserting Ru layers. The variation is firstly ascribed to the enhancement of the effective spin accumulation at the Co/Ru interfaces. Meanwhile, the interfacial Rashba effect has also been modulated, which depends on the direction of the internal electric field gradient at the interfaces. Our study provides an alternative way to modulate SOT.
引用
收藏
页码：14 / 19
页数：6
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